Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > In a transistor, the reverse saturation curre...
Start Learning for Free
In a transistor, the reverse saturation current ICO.
- a)doubles for every 10°C rise in temperature
- b)doubles for every 1ºC rise in temperature
- c)increases linearly with temperature
- d)decreases linearly with temperature
Correct answer is option 'A'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
In a transistor, the reverse saturation current ICO.a)doubles for ever...
The is flows in the reverse bias condition of the diode is called reverse saturation current. ... In a PN junction diode, the reverse saturation current is due to the diffusive flow of minority electrons from the p-side to the n-side and the minority holes from the n-side to the p-side.
View all questions of this test
Most Upvoted Answer
In a transistor, the reverse saturation current ICO.a)doubles for ever...
Transistors are semiconductor devices that are widely used in electronic circuits for amplification, switching, and other functions. One of the important characteristics of a transistor is its reverse saturation current ICO, which is the current that flows across the base-emitter junction when the transistor is in the reverse-biased mode. The ICO of a transistor is affected by various factors, including temperature.
Effect of temperature on ICO
The reverse saturation current ICO of a transistor is known to double for every 10°C rise in temperature. This is due to the following reasons:
1. Increase in thermal energy: As the temperature of the transistor increases, the thermal energy of the electrons in the base-emitter junction also increases. This results in an increase in the number of electrons that can cross the junction in the reverse direction, leading to an increase in ICO.
2. Increase in carrier concentration: The number of charge carriers (electrons and holes) in the base-emitter junction also increases with temperature. This is because the intrinsic carrier concentration of the semiconductor material increases with temperature. As a result, more charge carriers are available to participate in the reverse current flow, leading to an increase in ICO.
3. Increase in recombination rate: At higher temperatures, the recombination rate of charge carriers also increases. This means that more electrons and holes combine with each other, leading to a decrease in the number of charge carriers available for reverse current flow. However, this effect is negligible compared to the first two effects mentioned above, and hence the net effect is an increase in ICO.
Conclusion
In summary, the reverse saturation current ICO of a transistor doubles for every 10°C rise in temperature. This is due to the increase in thermal energy, carrier concentration, and recombination rate of charge carriers in the base-emitter junction. It is important to consider the temperature dependence of ICO when designing transistor circuits, as it can affect the performance and reliability of the circuit.
Effect of temperature on ICO
The reverse saturation current ICO of a transistor is known to double for every 10°C rise in temperature. This is due to the following reasons:
1. Increase in thermal energy: As the temperature of the transistor increases, the thermal energy of the electrons in the base-emitter junction also increases. This results in an increase in the number of electrons that can cross the junction in the reverse direction, leading to an increase in ICO.
2. Increase in carrier concentration: The number of charge carriers (electrons and holes) in the base-emitter junction also increases with temperature. This is because the intrinsic carrier concentration of the semiconductor material increases with temperature. As a result, more charge carriers are available to participate in the reverse current flow, leading to an increase in ICO.
3. Increase in recombination rate: At higher temperatures, the recombination rate of charge carriers also increases. This means that more electrons and holes combine with each other, leading to a decrease in the number of charge carriers available for reverse current flow. However, this effect is negligible compared to the first two effects mentioned above, and hence the net effect is an increase in ICO.
Conclusion
In summary, the reverse saturation current ICO of a transistor doubles for every 10°C rise in temperature. This is due to the increase in thermal energy, carrier concentration, and recombination rate of charge carriers in the base-emitter junction. It is important to consider the temperature dependence of ICO when designing transistor circuits, as it can affect the performance and reliability of the circuit.
Attention Electrical Engineering (EE) Students!
To make sure you are not studying endlessly, EduRev has designed Electrical Engineering (EE) study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Electrical Engineering (EE).
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Similar Electrical Engineering (EE) Doubts
Top Courses for Electrical Engineering (EE)View all
In a transistor, the reverse saturation current ICO.a)doubles for every 10°C rise in temperatureb)doubles for every 1ºC rise in temperaturec)increases linearly with temperatured)decreases linearly with temperatureCorrect answer is option 'A'. Can you explain this answer?
Question Description
In a transistor, the reverse saturation current ICO.a)doubles for every 10°C rise in temperatureb)doubles for every 1ºC rise in temperaturec)increases linearly with temperatured)decreases linearly with temperatureCorrect answer is option 'A'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about In a transistor, the reverse saturation current ICO.a)doubles for every 10°C rise in temperatureb)doubles for every 1ºC rise in temperaturec)increases linearly with temperatured)decreases linearly with temperatureCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a transistor, the reverse saturation current ICO.a)doubles for every 10°C rise in temperatureb)doubles for every 1ºC rise in temperaturec)increases linearly with temperatured)decreases linearly with temperatureCorrect answer is option 'A'. Can you explain this answer?.
In a transistor, the reverse saturation current ICO.a)doubles for every 10°C rise in temperatureb)doubles for every 1ºC rise in temperaturec)increases linearly with temperatured)decreases linearly with temperatureCorrect answer is option 'A'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about In a transistor, the reverse saturation current ICO.a)doubles for every 10°C rise in temperatureb)doubles for every 1ºC rise in temperaturec)increases linearly with temperatured)decreases linearly with temperatureCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a transistor, the reverse saturation current ICO.a)doubles for every 10°C rise in temperatureb)doubles for every 1ºC rise in temperaturec)increases linearly with temperatured)decreases linearly with temperatureCorrect answer is option 'A'. Can you explain this answer?.
Solutions for In a transistor, the reverse saturation current ICO.a)doubles for every 10°C rise in temperatureb)doubles for every 1ºC rise in temperaturec)increases linearly with temperatured)decreases linearly with temperatureCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electrical Engineering (EE).
Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free.
Here you can find the meaning of In a transistor, the reverse saturation current ICO.a)doubles for every 10°C rise in temperatureb)doubles for every 1ºC rise in temperaturec)increases linearly with temperatured)decreases linearly with temperatureCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
In a transistor, the reverse saturation current ICO.a)doubles for every 10°C rise in temperatureb)doubles for every 1ºC rise in temperaturec)increases linearly with temperatured)decreases linearly with temperatureCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for In a transistor, the reverse saturation current ICO.a)doubles for every 10°C rise in temperatureb)doubles for every 1ºC rise in temperaturec)increases linearly with temperatured)decreases linearly with temperatureCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of In a transistor, the reverse saturation current ICO.a)doubles for every 10°C rise in temperatureb)doubles for every 1ºC rise in temperaturec)increases linearly with temperatured)decreases linearly with temperatureCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice In a transistor, the reverse saturation current ICO.a)doubles for every 10°C rise in temperatureb)doubles for every 1ºC rise in temperaturec)increases linearly with temperatured)decreases linearly with temperatureCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Electrical Engineering (EE) tests.
|
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup